Lincoln Electric SVM136-A guide

C-7

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CONNECTING THE LN-8 OR LN-9 TO THE IDEALARC CV-400

1.Set the CV-400 POWER toggle switch to the OFF (0) position.

2.Disconnect main AC input power to the CV-400.

3.Connect the wire feeder control cable leads to the CV-400 terminal strip as shown in Figure C.5.

4.Connect the wire feeder control cable ground lead

to the frame terminal marked .

5.Extend wire feeder control cable lead #21 so it can be connected directly to the work piece.

a.Make a bolted connection using AWG #14 or larger insulated wire. Tape the bolted connection with insulating tape.

b.An S-16586- X remote voltage sensing work lead is available for this purpose.

c.Keep the #21 lead electrically separate from the work cable circuit and connection.

d.Tape the #21 lead to the work cable for ease of use.

NOTE: Using the extended #21 lead eliminates the need to use the LN-9's remote work lead accesso- ry, which has a direct work lead jack.

6.Connect the LN-9 wire feeder control jumpers on the Voltage Control board. See LN-9 operator's manual.

NOTE: The connection diagram shown in Figure C.5 shows the electrode connected for positive polarity. To change polarity:

a.Set the CV-400 POWER toggle switch to the OFF

(0) position.

b.Move the electrode cable to the negative (-) out- put terminal.

c.Move the work cable to the positive (+) output terminal.

d.Set the VOLTMETER toggle switch on power source to negative (-).

e.Set the voltmeter toggle switch on feeder (if equipped) to match electrode polarity.

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